Method for protecting nonporous substrates and for rendering them water repellent

ABSTRACT

METHOD AND COMPOSITION FOR TREATING NONPOROUS SUBSTRATES TO PROTECT AND RENDER SAME WATER REPELLENT. A MINERAL ACID IS ADDED TO A SOLVENT AND AN ALKYL POLYSILOXANE IS THEN ADDED TO THAT MIXTURE TO PRODUCE THE COMPOSITION. THE ALKYL POLYSILOXANE HAS THE FORMULA:   -(SI(-R1)(-R2)-O)N-   WHEREIN N IS AN INTEGER GREATER THAN 1, R1 IS A LOWER ALKYL CONTAINING 1-7 CARBON ATOMS AND R2 IS HYDROGEN, A LOWER ALKYL CONTAINING 1-7 CARBON ATOMS OR AN ARYL RADICAL CONTAINING ABOUT 6 CARBON ATOMS.



